Home / 18,696,084.69-28,047,762.93-7,180,709.57

Finding the Fourth Proportional to 18,696,084.69, 28,047,762.93 and 7,180,709.57

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Solution

The fourth proportional to 18,696,084.69, 28,047,762.93 and 7,180,709.57 is: 10,772,460.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696,084.69 : 28,047,762.93 = 7,180,709.57 : x
  2. Step 2: Convert to fraction form
    18,696,084.69/28,047,762.93 = 7,180,709.57/x
  3. Step 3: Cross multiply
    18,696,084.69x = 28,047,762.93 × 7,180,709.57
  4. Step 4: Simplify right side
    18,696,084.69x = 201,402,839,548,303.44
  5. Step 5: Solve for x
    x = 201,402,839,548,303.44/18,696,084.69
  6. Step 6: Final answer
    x = 10,772,460.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.